But I had to use what was available at the time...
I wanted mine to open for storage and it needs to be strong enough to sit on.
The result is OK I think.
Retro suitcase of your choice
12mm MDF sheet
20mm diameter aluminum tube (wardrobe rail)
20mm rubber feet
Ruler, tri-square, tape measure
Hot glue gun
20mm hole saw
Step 1: Gut the suitcase.
Carefully lever the staples and remove all the upholstery.